Apparatus for polishing tubes, rods, and the like.



P. WERTH.

APPARATUS FOR POLISHING TUBES, RODS, AND THE LIKE.

APPLIOATION FILED JAN. 5, 1911.

INVENTOI? Wmvsssm; f 4 a M @W ww siding as 18 Gorso FEDERICO WERTH, OF MILAN, ITALY.

APPARATUS FOR POLISHING TUBES, RODS, AND THE LIKE.

Specification of Letters Patent.

Patented July 4, 1911.

Application filed January 5, 1911. Serial No. 600,898.

To all whom it may concern:

Be it known that I, Fnnnnrco WERTH, a subject of the Em eror of Germany, re-

ercelli, Milan, in the Kingdom of Italy, have invented certain new and useful Improvements in Apparatus for Polishing Tubes, Rods, and the Like, of which the following is a specification.

Wit-h the ap aratus hitherto employed for cleaning, po ishing and working round objects, such as tubes, rods, cones and the like, it has been customary to treat these objects by means of rotary disks, brushes and the like, rotating on dilferent axes, the rotary disks bein pressed by mechanical devices against t e object to be treated. With such devices different driving shafts and other complicated mechanism were nec essary, so that the particular machine required a large amount of space and was not simple in action.

An example of the invention is illustrated in the accompanying drawing.

Figure 1 is a side elevation, and Fig. 2 a front elevation of the apparatus.

A rotating disk sor a similar part with a central hole, the diameter of which. is suited to the diameter of the largest tube or rod lcthat is to be passed through, carries on its periphery one or more twoarm levers m-, which are rotatively seated on pins z-, which are provided on the disk itself. On one of its ends each lever mr carries a weight g and on the other end the tool or implement for example a brush b required for the work. The arm of the lever that carries.

the weight -g-- is much heavier than the arm that carries the tool. If the disk -s be rotated quickly enough the weight g on each lever will be subjected to centrifugal force, and consequently the implement -b be pressed toward the center of rot-ation, and against the object drawn through the central hole. The-pressure and consequently the effective output of the implement -b is greater accordingly as the weight g is heavier, and the speed of the disk -sgreater. If, on the other hand, it

be desired to work the inner surface of lar e hollow objects such as tubes, c linders an the like, the implement itsel is arranged in the weight, itself, which is thus pressed from the center of rotation, and so against the inside of the tube, and the implement made effective.

It will be seen that this invention allows of machines constructed in a very simple manner to be employed for. working round objects, these. machines having great advantages over known machines, and insuring not only success in an economic sense, but considerable simplification of the former mode of employment. The working of the objects in accordance with the said patents necessitates the employment of large complicated machines, the same result, and a still larger output being obtained with the simple machine according to the present invention.

From the figures of the drawing itwill be seen that for actuating the machine only one driving-device is necessary, that no adjustment of the machine is necessary, that the exchanging of the implements can be effected in an exceedingly simple manner, and that not only round, but also conical and all other solids of revolution may be worked therewith, as the pressure regulated by centrifugal force adapts itself to any form.

Having now particularly described and ascertained the nature of my said invention, and in What manner the same is to be performed, I declare that what I claim is 1. An apparatus for polishing and working tubes, rods and the like, comprising a rotating body, adjustably weighted arms pivoted thereto on axes parallel with the axis of rotation of said body, and working implements on said arms.

2. An apparatus for polishing and working tubes, rods and the like, comprising a rotating body, arms pivoted thereto on axes parallel with the axis of rotation of said body, weights on said arms, and workingv implements on said arms.

3. An apparatus for polishing and working tubes, rods and the like, comprisin a In-testimony that I claim the foregoing disk having a central hole, arms ivote to as my lnvent-ion, I have si ed my name in said disk on axes parallel with t e axis of the presence of two subscri ing witnesses rotation, weights on said arms, working im- FEDERICO WERTH. 5 plements on said arms arranged in juxta-' Witnesses:

position to said opening, and means for ro- OSCAR PI'iMPER,

tating said disk. P. DE FRANCISESI. 

